Specifications

26-6
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 26 Configuring SONET Automatic Protection System
APS 1+1 (Card and Line Redundancy)
• BPX-RDNT-SM-622-2 (2 port, medium reach, SMF, FC connector)
Each of the listed model numbers includes two single backcards and one mini-backplane (providing
cross coupling of two backcards).
The single backcards and mini-backplane can be ordered as spares. Their model numbers are:
• BPX-RDNT-BP= (common backplane for all redundant APS backcards)
• BPX-LR-155-8R-BC= (for BPX-RDNT-LR-155-8)
• BPX-LR-622-2R-BC= (for BPX-RDNT-LR-622-2)
• BPX-SMF-155-4R-BC= (for BPX-RDNT-SM-155-4)
• BPX-SMF-155-8R-BC= (for BPX-RDNT-SM-155-8)
• BPX-SMF-622-R-BC= (for BPX-RDNT-SM-622)
• BPX-SMF-622-2R-BC= (for BPX-RDNT-SM-622-2)
Figure 26-4 APS 1+1 Redundancy, Installing APS Backcards in APS Redundant Backplane
Traffic protected by APS 1+1 redundancy is carried via the working line and the protection line
simultaneously (see Figure 26-5). Bridging is implemented such that the same payloads are transmitted
identically over the working line as the protection line.
14 13 12 11
10
7
BCC-A
8
BCC-B
6
915
ASM
LMÐ
3/T3
5
4
3
2
1
LMÐ
3/T3
LMÐ
3/T3
LMÐ
3/T3
LMÐ
3/T3
LMÐ
3/T3
LMÐ
3/T3
LMÐ
3/T3
LMÐ
3/T3
LMÐ
3/T3
22901
LMÐ
3/T3
LMÐ
3/T3
BPX-RDNT-BP
redundant
backplane,
common for all
APS backcards
APS
backcards